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Finding the Fourth Proportional to 320,535.36, 480,954.24 and 143,026.56

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Solution

The fourth proportional to 320,535.36, 480,954.24 and 143,026.56 is: 214,607.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,535.36 : 480,954.24 = 143,026.56 : x
  2. Step 2: Convert to fraction form
    320,535.36/480,954.24 = 143,026.56/x
  3. Step 3: Cross multiply
    320,535.36x = 480,954.24 × 143,026.56
  4. Step 4: Simplify right side
    320,535.36x = 68,789,230,464.61
  5. Step 5: Solve for x
    x = 68,789,230,464.61/320,535.36
  6. Step 6: Final answer
    x = 214,607.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.